.tab-icon {
	background-image: url(images/tab16x16.gif) !important;
}
.demo-tab-shortcut img {
    background-image: url(images/tab48x48.png);
    filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='system/modules/tab-win/images/tab48x48.png', sizingMethod='scale');
}